@cosytoasty thinks it's a parsnip but i disagree.. it's gotta be something else
MHO to whoever can provide evidence :P
[See GIF] What is King Bumi eating?
What Guys Said 6
Deez nuts, ha got emmmmmm1
That's the crystal candy from his first appearance on the show.1
What Girls Said 12
King Bumi and I share a name/nickname, though I spell mine differently. Hence, we have an innate connection. Therefore, I can soundly say he is eating rock candy, which has many purposes as Katara and Sokka find out in Episode 5; Book 1: Water, titled: The King of Omashu.
Jennamite, that's the name of the rock candy.1
He's eating the crystal that he used to imprison katara and sokka. He said after letting them go that it's edible too. :D1
Looks like an icicle1